Once you have acquired yourself an globally valid IPv6 prefix, you may need to configure addresses on your hosts. By default computers will attempt to find themselves an IPv6 address automatically by using the processes of NDP or DHCPv6.

[*] If the router interface in question is not facing your LAN (where the client computers are), you may want to put ipv6 nd suppress-ra under the interface configuration. This will disable router advertisements on that interface.

[**] Use this if you want the router to provide other IPv6 configurations to your computers, for example IPv6 DNS addresses. If you do this, you must also set up a service such as ipv6 dhcp pool that will give out these settings.

Vyatta router

By default Vyatta has IPv6 forwarding on so you can just address your interfaces and write your routes.

[*] Turn router-advert on if this interface is serving as IPv6 gateway to computers in your LAN. If this interface is facing only another router(s) you might want to leave it out.

[**] Use this if you want the router to provide other IPv6 configurations to your computers, for example IPv6 DNS addresses. If you do this, you must also set up a service such as DHCPv6 that will give out these settings.